概述胶片是由乳剂层和片基两部分构成的。乳剂层中的明胶在涂布干燥、洗印加工干燥时,都产生一定的收缩应力,使胶片向乳剂面卷曲。乳剂层越厚,收缩应力越大,向乳剂面卷曲越严重。为了制造不卷曲的胶片,应从两方面着手。一方面,减小乳剂层的收缩应力,如减小乳剂层厚度,加入某些增塑、改性物质,以改善明胶的物理机械性能。另一方面,对 Overview Film is composed of two parts emulsion layer and film base. The gelatin in the emulsion layer will produce certain shrinkage stress during coating and drying and printing and drying, so that the film curls to the emulsion surface. The thicker the emulsion layer, the greater the shrinkage stress and the more severe the curling of the emulsion surface. In order to make non-curled film, proceed from both sides. On the one hand, reduce the shrinkage stress of the emulsion layer, such as reducing the thickness of the emulsion layer, add some plasticized, modified material to improve the physical and mechanical properties of gelatin. On the other hand, yes